This Is What A Fish's Thoughts Look Like

A new
video (presented here in gif form) shows what it looks like
when a zebrafish (a small fish normally used in the lab) thinks
about food. The video is the result of a very sensitive
fluorescent dye that shines when an electric charge moves through
the fish's brain cells.

The researchers showed the fish a dot (meant to look like their
favorite food, the paramecium a tiny, once celled animal)
that flitted by its eye for the first three seconds of the video.
The brain reacts immediately.

The researchers say this is the first time they've caught a
thought on video. The paper detailing the new method was
published Thursday, Jan. 13 in the
journal Current Biology.